Lasting-machine



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LASTING MACHINE.

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LASTING MACHINE.

No. 476,206.- Patented May 31, 1892.

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LASTING MACHINE No. 476,206. Patented May 31, 1892.

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UNITED STATES CHARLES P. LAWRENCE, OF MECHANIC FALLS, MAINE, ASSI GNOR TO JOHN F. HARRIS, JR, OF BOSTON, MASSACHUSETTS.

LAS'l'lNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 476,206, dated May 31,1892.

Application filed February 8, 1892- Serial No. 420.634. (No model.)

To all whom it may concern.-

Be it known that I, CHARLES P. LAWRENCE, of Mechanic Falls, county of Androscoggin, State of Maine, have invented an Improvement in Lasting-Machines, of which the following description, in connection with the accompanying drawings, is a specification, like letters and figures on the drawings represent- 1 sentially, of a column A,but partially shown,

ing like parts.

This invention has for its object to improve that class of lasting-machines wherein the upper is drawn over upon the last or an inner sole thereon by means of pinchers, the aim being to produce a machine having all I5 the advantages of the hand method of lasting, coupled with the automatic Working to not only stretch the upper and fit it to the last, but also to drive the tacks or fastenings.

In accordance with my invention the oporator will hold in his hand the last and upper thereon which is to be lasted and will present the edges of the upper by hand between the open jaws of the nippers and start the machine by or through asuitable treadle,

2 5 the machine as it first starts operating to automatically close the nippers upon the edges of the upper and then pull or strain the upper over the last, the last being then moved horizontally under a suitable throat or foot adapted to have a tack driven through it by a driver into the upper, the nippers having been moved to release the upper as the last passes under the foot or presser.

The particular features in which myinven- 5 tion consists will be hereinafter specifically described, and pointed out in the claims at the end of the specification.

Figure 1 is a left-hand "side elevation of a sufficient portion of a lasting-machine containing my invention to enable the same to be understood. Fig. 1 isa detail of the nut e and the parts within it. Fig. 2 is a front elevation of the parts shown in Fig. 1, the last and upper being, however, omitted. Fig.

3 is a right-hand side elevation of the machine shown in Fig. l, but with the parts in a slightly-different position. Figs. 4 and 5 are details showing the nippers in yet other positions and the last in a dilferent position to explain the operation of my improved machine; Figs. 6 and 7, details showing the lower end of the raceway and the picker and of the devices into which the nail is deposited to be driven; and Fig. 8 is a detail showing the pulleys and belt for rotating various parts, the belt being omitted from the other drawings.

The frame-work of the machine consists, es-

which in practice will set upon the floor or other suitable support, said column sustaining a head A, having suitable bearings for the working parts. The head has bearings for a rotating shaft A which in practice will have co-operating with it some usual form of clutch or friction pulley having a cam device A under the control of asuitable treadle (not shown) connected with the said cam device, so that the depression of the red A and cam device will effect the clutching of the loose 7b pulley or fiy-wheel A upon and so as to rotate the main cam-shaft. Myinvention does not, however, reside in any particular form of clutch-pulley or means for operating the same, so that the shaft may be rotated once and then stopped automatically. I

The cam-shaft A has a series of cams B C D E, the cams B C D being preferably made in one piece to save cost. The head of the machine at its forward or right-hand end, viewing Fig. 1, is provided with a suitable passage to receive a carriage or nipper-support B, the said carriage being jointed at B to the lower end of a rod B adapted to be lifted by a lever B, pivoted at B and having a roller or other stud B, which rests upon the cam B. The purpose of the cam B and lever B is to lift the carriage B when the nippers b b are closed upon the upper u to thus stretch or draw the upper over and about the edge of the last 2, and to regulate this upward drawing movement or temper the same, according to the stock being operated upon,it is desirable for the best results that the upward lifting movement should be a yielding movement. So to provide for this I haveinterposed between the end of the lever B and the nut 13 on the rod 13 a spring B the force or stress of which may be increased or diminished at will, according to the stock used, by 1'00 the rotation of the nut B The carriage B in this present instance of my invention is 'represented as grooved at its inner side to receivea nipper-actuating bar e, provided at its upper end with a laterally-extended finger having a threaded sleeve 2, upon which is screwed a hollow nut 6 open at its upper end sufliciently to receive the upper end of a rod 6 the said rod within said sleeve having surrounding it a spiral spring 6 (see Fig. 1%) one end of which rests against the upper end of the hollow nut 6 the other end of said spring bearing on a shoulder e on the rod e The lower end of this rod 6 is shaped to receive a roll 6 which bears on the cam E, and by adjusting the hollow nut e the stress of the spring may be made more or less, so that the upward strain put upon the bar e by or through the action of the cam E will be more or less. The bar 6 near its lower end is provided with a stud a which is extended through a suitable slot 2 in the carriage B and enters a slot 6 in one end of a lever e pivoted at e on the said carriage, the said lever at its opposite end being jointed to a link e adapted to embrace a stud 3, connected with the lower nipper-jaw Z) and extended through a slot iin thelower end of the carriage B. The nipperb may be connected to the carriage B by a suitable screw, as 5. The vertical movement of the bar 6 by or through the cam E acting on the lever e causes the nipper or pincher jaw 19 to be moved toward and from the nipp'er-jaw b, or from the position Fig. 1 into the position Fig. 3, the upward movement of the carriage B causing the nippers closed upon the upper, as in Fig. 3, to be lifted, as in Fig. 4, to strain the upper, and thereafter the backward movement of the jaw 12, or the movement thereof to the right in Fig. 5 while the carriage is preferably yet up, effects the release of the edge of the upper preparatory to the last being pushed forward into position to have a tack driven into the overturned edge of the upper.

The head has mounted upon it, as herein shown, at the left-hand side thereof, a suitable guideway or track, as 0', upon which is mounted a slide 0 having, as represented, a stud 6, which enters aslot in the upper end of a driver-actuating device, (shown as a lever C pivoted at C the said lever having connected with it in suitable manner a driveractuating spring C partially shown in Fig. 1 and more fully in Fig. 2, the same being made adjustable in usual manner to vary the effective driving force of the spring upon the lever O As herein represented, the lower on d of the lever C (shown as of elbow-shape) has jointed to it a link 10, whichis provided at its lower end with a hole to embrace a stud 12, extended laterally from a driver-bar 0, having at its lower end adriver C", said driver-bar being fitted to slide up and down ina suitable guide 0 suitably attached to the head of the machine, one side of the said guide being slotted or cutaway for the passage of the stud 12. The slide C has a roller or other stud 14, which in the rotation of the main shaft is acted upon by the cam C; but as soon as the heel 15 (see Fig. 1) of the said cam passes the said stud the spring 0 immediately assumes control of the driver-actuating lever and throws down the driver, causing it to act upon the head of a tack which has been presented under it, as will be described, and drive the same into the overturned edge of the upper to secure the same to the innersole'lying upon the bottom of the last.

The head of the machine has at its opposite side (see Fig. 3) guide-lips D, which are represented in said figure by dotted lines, but

shown in Fig. 2 by full lines. This guideway receives a projection D from ayoke D (best shown in Fig. 3,) said yoke having a roller or other stud D which is acted upon by the edge of the cam D during the rotation of the cam-shaft, the said cam moving the said yoke in the direction of the arrow near it in Fig. 3, a spiral or other suitable spring D preferably made adjustable by a nut D screwed upon a rod D attached in suitable manner to the yoke, causing the roll D to be kept in contact normally with the said cam, the. said spring acting to move the yoke in a direction opposite to the arrow referred to. This yoke has connccted to one of its legs-via, that one nearest the column of the machinean edgeguide D which is preferably made adjustable by or through a suitable screw D, the said guide receiving against it one end of the last containing the upper to be lasted and acting as a guide thercfor,.the operator keeping the last pressed against the said guide. The opposite end or leg of the yoke referred to has adj ustably connected to it by a suit able set-screw or device D a strut or downhold D, so shaped as to bear uponthe inner sole or upon the bottom of the last at a point near where the nippers act upon the upper to draw the latter over the last, the said strut forming a sort of downhold up against which the operator may hold the bottom of the last to thus aid in positioning the same with relation to the guide and with relation to the nippers.

In practice it is preferred to tooth or serrate the acting end of the strut, so as to engage the inner sole, such teeth aiding the operator in maintaining the last in correct position during the lasting operation, it being understood that the operator holds the inner sole and upper on the last against the guide and the downhold during the lasting operation, causing the last to follow and move in unison with the yoke. Fig. 1 shows the parts in the position they will occupy preparatory to lasting the upper, and it will be seen that the last has been put into position so that the bottom thereof, or it may be the inner sole thereon, contacts with the bottom of the downhold and the upper touches in position between the jaws of the nippers. Now the operator starts the machine. The

upper, as in Fig. 3, and immediately thereafter the cam B works through the devices described, thus lifting the nippers into the and draw the upper over the edge of the last. This done the cam D commences to operate to move the yoke rearwardly, causing the front end of the last to get'under the presser or foot g, and immediately thereafter the nippers are opened to release the upper, and the movement of the yoke is continued while the operator holds the inner sole and upper firmly against the downhold and the guide and the upper is laid over upon the inner sole in position to be mailed, Fig. 5 showing the driver as having descended and having driven, it will be supposed, a tack into the edge of the upper to fasten it to the'inner sole.

It now remains to describe the tack-presenting mechanism.

The head has suitable bearings, through which is extended a stud I-I, upon which is mounted to rotate a hopper, as H, said hopper being partially open at its front end, as at 1-1 Fig. 2, and having a series of lifting devices or rotating shelves, as H so that when.

the hopper is rotated the said shelves will raise the tacks and drop them into a box, as h, at the upper end of a chute or nail-eonductor h, the tacks the bodies of which have fallen properly in the slot of the tack-roadway traveling down the roadway and being -picked off therefrom one by one by a rotating picker 7L2, it depositing the nails removed from the chute into position .between the yielding jaws of a nose m (shown in detail in Fig. 7,) the said nose havingbut a receiving-opening, which is intersected by a slot, the nose having spring-arms, being so shaped as to hold the body of the nail with its point above the presser g, the jaws, however, yielding and springing apart to let the tack pass when being acted upon by the driver. The shape of thispicker or separator, as it may be called, is best shown in Fig. 6. The separator is attached to a short vertical shaft mounted in a bearing and having at its lower end a bevel-gear, as n, which is engaged by a bevel-pinion n on a shaft n provided at its rear end with a suitable pulley or wheel, as a which receives a belt H extended about a pulley I-I fast with relation to the main shaft, the said belt (marked H surrounding a pulley H fast to the hopper, the said belt acting against an idle-pulley H Instead of the particular form of hopper and chute and separator to conduct a tack into driving position below the driver I may employ any other usual or suitable devices.

In order to knock off from the top of the roadway or chute any nail improperly lodged there, I have provided a brush, as 19, mounted on a short shaft 29', having a friction-wheel 20, which bears against the outer end of the ,hopper, the said hopper in itsrotation rotating the friction-wheel, the shaft, and the brush. -rod e is lifted,closing the nippers upon the In this my improved machine it will be seen that the action is substantially the same. as in hand-lastin g with pinchers, yet the pull- .ing over is effected automatically.

position Fig. 4, causing the latter to strain i Having described my invention, what I claim, and desire to secure by Letters Pat ent, is-

1. In alasting-machine, a sliding yoke hav- .ing an edge-guide and a downhold movable with said yoke, and means to slide said yoke laterally, combined with a vertically-moving carriage for the nippers, a fixed nipper rigidly secured to the carriage and a movable nipper sliding horizontally in the carriage, devices to move the carriage vertically, a nipper-actuating. bar movable longitudinally in said carriage, and connections 'between it and the movable nipper to reciprocate it to close the nippers and open them at the proper times, and means to reciprocate said actuating bar independently of the carriage, substantially as described.

2. In a lasting-machine, a sliding yokehaving connected thereto an edge-guide and a downhold, means to slide the said yoke, a fixed and a movable nipper, avertically-mow ing carriage in which the nippers are mounted, devices to move the said carriagevertt eally, aspringcontrolled-nipper-actuatin g bar movable longitudinally in said carriage, con nections includinga slotted lever and a link between it and the movable nipper to close and open the nippers at the proper times, and means to actuate said bar, combined with a driver to drive a tack into the upper and means including a slide, elbow-lever, and link to actuate the driver, substantially as described.

3. In a lasting-machine, a yoke having connected thereto an edge-guide and a downhold, means to guide the said yoke, a stationary presser, nippers, a vertically-moving carriage in which the nippers are mounted, devices to move the said carriage vertically, and devices to close the said nippers and open the same atthe proper times, combined with a driver to drive a tack into the up per, a nose having yielding jaws between the presser and driver, a hopper, a chute, and a rotating picker at the end thereof above the nose to present a tack to said jaws in driving position with relation to the driver,.substantially as described.

4. Ahead provided with a guideway, a yoke mounted to slide thereon, and an edge-guide and a downhold carried by the said yoke and movable in unison therewith, combined with a pair of nippers located in a vertical plane between the said edge-guide and the said downhold and independent means to operate the said nippers simultaneously and sepa rately, substantially as described.

5. In a lasting-machine,a head provided with a guideway, a yoke mounted to slide thereon, means to reciprocate said yoke, and

an edge-guide and a downhold carried by said yoke and movable therewith, combined with a pair of nippers located between said edgeguide and the said downhold and independent thereof and a presser-foot or devices 9, stationary with relation to the edge-guide and downhold and located above said edgeguide, whereby the last while in contact with the edge-guide and downhold may be moved horizontally under the presser-foot, substantially as described.

6. In a lasting-machine, a downhold, combined with a carriage grooved at its inner side and recessed at its lower end and having slots 2 and 4, a stationary jaw 12, connected to the carriage to contact with the outer side of the upper, a horizontally-movable jaw to slide in said recessed end to contact with the inner side of the upper and provided with a stud stud extended through said slot 2, a lever pivoted to the carriage and having a slot to embrace the stud on the actuator-bar, and a link connecting said lever with the stud of the movable jaw to close the jaws and hold them closed on the upper, and devices yieldingly connected with and to move the carriage to lift the said jaws while closed, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

CHARLES P. LAWVRENCE.

Witnesses:

AUGUSTUS W. BUTLER, FREDsoN R. ANDREWS. 

